Gaya APA

Chiung, A, C., Wainwrigth, K. (2005). Fundamental methods of mathematical economics (4th ed.). New York: The McGraw-Hill Companies, Inc..

Gaya MLA

Chiung, Alpha, C.., Wainwrigth, Kevin. "Fundamental methods of mathematical economics". 4th ed. New York: The McGraw-Hill Companies, Inc., 2005. e-book.